Stone Temple is the secret level in The Keys of Krodacia. Secret levels in the previous official games had several characteristics. Secret City (Keen 1) and Hidden City (Keen 3) had the highest points available in those games. In Secret City and Korath III Base (Keen 5) you are teleported to the secret level. Hidden City and Blooglab Space Station (Keen 6) contain the translation of the Standard Galactic Alphabet. To Hidden City, Pyramid of the Forbidden (Keen 4) and Blooglab Space Station, something gives you a ride to the secret level. In Pyramid of the Forbidden and Korath III Base, you find a little surprise in each level.
In The Keys of Krodacia, the Krodacian Car gives you a ride to the Stone Temple. There are gargoyle statues of the Krodacians all over the temple. The secret is some of these statues are not exactly inanimate objects! If you are careless and you run into, fall upon or shoot the wrong statues with your Neural Stunner, they will break open and a living Krodacian will now be free and able to hunt Keen down. This is the only level where the Stone Krodacians appear.
Since there are already a Patsy, Magifly and other Krodacians throughout the temple, releasing more of them is certainly not recommended. This level is the last of three temples. The other two temples are called Gem Temple and Slime Temple. As with the other two temples, some of the walls are decorated with templates that show the Standard Galactic Alphabet. Unlike the other two temples, there is no key to the Universal Toaster Canon found here.
You need to make your way through the temple and find where the Krodacian Car went after it dropped Keen off, because you cannot leave the temple and play any other levels until you do.
There are no less than 105,800 points in this Temple, which is the highest accessible amount of points in the game. It includes 39 Krodacian Sodas, 32 Blue Peppermints, 29 Chocolate Bars, 17 Sugar Cubes, 7 Burgers and 10 Strawberry Jellos (3,900 + 6,400 + 14,500 + 17,000 + 14,000 + 50,000 = 105,800). The total of gems is not less than 103, so they're worth more than an extra life. There are two 1-UPs hidden in here.